Merge branch 'char-misc-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git

Author: sfrothwell

Documentation/ABI/testing/sysfs-bus-cdx

@@ -28,14 +28,57 @@ Description:
 		of a device manufacturer.
 		Combination of Vendor ID and Device ID identifies a device.
 
+What:		/sys/bus/cdx/devices/.../subsystem_vendor
+Date:		July 2023
+Contact:	puneet.gupta@amd.com
+Description:
+		Subsystem Vendor ID for this CDX device, in hexadecimal.
+		Subsystem Vendor ID is 16 bit identifier specific to the
+		card manufacturer.
+
+What:		/sys/bus/cdx/devices/.../subsystem_device
+Date:		July 2023
+Contact:	puneet.gupta@amd.com
+Description:
+		Subsystem Device ID for this CDX device, in hexadecimal
+		Subsystem Device ID is 16 bit identifier specific to the
+		card manufacturer.
+
+What:		/sys/bus/cdx/devices/.../class
+Date:		July 2023
+Contact:	puneet.gupta@amd.com
+Description:
+		This file contains the class of the CDX device, in hexadecimal.
+		Class is 24 bit identifier specifies the functionality of the device.
+
+What:		/sys/bus/cdx/devices/.../revision
+Date:		July 2023
+Contact:	puneet.gupta@amd.com
+Description:
+		This file contains the revision field of the CDX device, in hexadecimal.
+		Revision is 8 bit revision identifier of the device.
+
+What:		/sys/bus/cdx/devices/.../enable
+Date:		October 2023
+Contact:	abhijit.gangurde@amd.com
+Description:
+		CDX bus should be disabled before updating the devices in FPGA.
+		Writing n/0/off will attempt to disable the CDX bus and.
+		writing y/1/on will attempt to enable the CDX bus. Reading this file
+		gives the current state of the bus, 1 for enabled and 0 for disabled.
+
+		For example::
+
+		  # echo 1 > /sys/bus/cdx/.../enable
+
 What:		/sys/bus/cdx/devices/.../reset
 Date:		March 2023
 Contact:	nipun.gupta@amd.com
 Description:
-		Writing y/1/on to this file resets the CDX device.
-		On resetting the device, the corresponding driver is notified
-		twice, once before the device is being reset, and again after
-		the reset has been complete.
+		Writing y/1/on to this file resets the CDX device or all devices
+		on the bus. On resetting the device, the corresponding driver is
+		notified twice, once before the device is being reset, and again
+		after the reset has been complete.
 
 		For example::
 
@@ -54,3 +97,18 @@ Description:
 		For example::
 
 		  # echo 1 > /sys/bus/cdx/devices/.../remove
+
+What:		/sys/bus/cdx/devices/.../modalias
+Date:		July 2023
+Contact:	nipun.gupta@amd.com
+Description:
+		This attribute indicates the CDX ID of the device.
+		That is in the format:
+		cdx:vXXXXdXXXXsvXXXXsdXXXXcXXXXXX,
+		where:
+
+		    - vXXXX contains the vendor ID;
+		    - dXXXX contains the device ID;
+		    - svXXXX contains the subsystem vendor ID;
+		    - sdXXXX contains the subsystem device ID;
+		    - cXXXXXX contains the device class.

Documentation/ABI/testing/sysfs-bus-iio

@@ -279,6 +279,35 @@ Description:
 		but should match other such assignments on device).
 		Units after application of scale and offset are m/s^2.
 
+What:		/sys/bus/iio/devices/iio:deviceX/in_deltaangl_x_raw
+What:		/sys/bus/iio/devices/iio:deviceX/in_deltaangl_y_raw
+What:		/sys/bus/iio/devices/iio:deviceX/in_deltaangl_z_raw
+KernelVersion:	6.5
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Angular displacement between two consecutive samples on x, y or
+		z (may be arbitrarily assigned but should match other such
+		assignments on device).
+		In order to compute the total angular displacement during a
+		desired period of time, the application should sum-up the delta
+		angle samples acquired during that time.
+		Units after application of scale and offset are radians.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_deltavelocity_x_raw
+What:		/sys/bus/iio/devices/iio:deviceX/in_deltavelocity_y_raw
+What:		/sys/bus/iio/devices/iio:deviceX/in_deltavelocity_z_raw
+KernelVersion:	6.5
+Contact:	linux-iio@vger.kernel.org
+Description:
+		The linear velocity change between two consecutive samples on x,
+		y or z (may be arbitrarily assigned but should match other such
+		assignments on device).
+		In order to compute the total linear velocity change during a
+		desired period of time, the application should sum-up the delta
+		velocity samples acquired during that time.
+		Units after application of scale and offset are meters per
+		second.
+
 What:		/sys/bus/iio/devices/iio:deviceX/in_angl_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_anglY_raw
 KernelVersion:	4.17
@@ -461,6 +490,8 @@ What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_countY_scale
+What:		/sys/bus/iio/devices/iio:deviceX/in_deltaangl_scale
+What:		/sys/bus/iio/devices/iio:deviceX/in_deltavelocity_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_angl_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_x_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_y_scale
@@ -1332,6 +1363,12 @@ Description:
 What:		/sys/.../iio:deviceX/bufferY/in_accel_x_en
 What:		/sys/.../iio:deviceX/bufferY/in_accel_y_en
 What:		/sys/.../iio:deviceX/bufferY/in_accel_z_en
+What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_x_en
+What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_y_en
+What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_z_en
+What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_x_en
+What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_y_en
+What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_z_en
 What:		/sys/.../iio:deviceX/bufferY/in_anglvel_x_en
 What:		/sys/.../iio:deviceX/bufferY/in_anglvel_y_en
 What:		/sys/.../iio:deviceX/bufferY/in_anglvel_z_en
@@ -1362,6 +1399,8 @@ Description:
 		Scan element control for triggered data capture.
 
 What:		/sys/.../iio:deviceX/bufferY/in_accel_type
+What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_type
+What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_type
 What:		/sys/.../iio:deviceX/bufferY/in_anglvel_type
 What:		/sys/.../iio:deviceX/bufferY/in_magn_type
 What:		/sys/.../iio:deviceX/bufferY/in_incli_type
@@ -1416,6 +1455,12 @@ What:		/sys/.../iio:deviceX/bufferY/in_voltage_q_index
 What:		/sys/.../iio:deviceX/bufferY/in_accel_x_index
 What:		/sys/.../iio:deviceX/bufferY/in_accel_y_index
 What:		/sys/.../iio:deviceX/bufferY/in_accel_z_index
+What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_x_index
+What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_y_index
+What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_z_index
+What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_x_index
+What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_y_index
+What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_z_index
 What:		/sys/.../iio:deviceX/bufferY/in_anglvel_x_index
 What:		/sys/.../iio:deviceX/bufferY/in_anglvel_y_index
 What:		/sys/.../iio:deviceX/bufferY/in_anglvel_z_index
@@ -2179,3 +2224,33 @@ Contact:	linux-iio@vger.kernel.org
 Description:
 		Number of conditions that must occur, during a running
 		period, before an event is generated.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_colortemp_raw
+KernelVersion:	6.7
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Represents light color temperature, which measures light color
+		temperature in Kelvin.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_chromaticity_x_raw
+What:		/sys/bus/iio/devices/iio:deviceX/in_chromaticity_y_raw
+KernelVersion:	6.7
+Contact:	linux-iio@vger.kernel.org
+Description:
+		The x and y light color coordinate on the CIE 1931 chromaticity
+		diagram.
+
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_mag_either_label
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_mag_rising_label
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_thresh_falling_label
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_thresh_rising_label
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_anglvelY_mag_rising_label
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_anglY_thresh_rising_label
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_phaseY_mag_rising_label
+KernelVersion:	6.7
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Optional symbolic label to a device channel event.
+		If a label is defined for this event add that to the event
+		specific attributes. This is useful for userspace to be able to
+		better identify an individual event.

Documentation/ABI/testing/sysfs-bus-iio-adc-mcp3564

@@ -0,0 +1,53 @@
+What:		/sys/bus/iio/devices/iio:deviceX/boost_current_gain
+KernelVersion:	6.4
+Contact:	linux-iio@vger.kernel.org
+Description:
+		This attribute is used to set the gain of the biasing current
+		circuit of the Delta-Sigma modulator. The different BOOST
+		settings are applied to the entire modulator circuit, including
+		the voltage reference buffers.
+
+What:		/sys/bus/iio/devices/iio:deviceX/boost_current_gain_available
+KernelVersion:	6.4
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Reading returns a list with the possible gain values for
+		the current biasing circuit of the Delta-Sigma modulator.
+
+What:		/sys/bus/iio/devices/iio:deviceX/auto_zeroing_mux_enable
+KernelVersion:	6.4
+Contact:	linux-iio@vger.kernel.org
+Description:
+		This attribute is used to enable the analog input multiplexer
+		auto-zeroing algorithm (the input multiplexer and the ADC
+		include an offset cancellation algorithm that cancels the offset
+		contribution of the ADC). When the offset cancellation algorithm
+		is enabled, ADC takes two conversions, one with the differential
+		input as VIN+/VIN-, one with VIN+/VIN- inverted. In this case the
+		conversion time is multiplied by two compared to the default
+		case where the algorithm is disabled. This technique allows the
+		cancellation of the ADC offset error and the achievement of
+		ultra-low offset without any digital calibration. The resulting
+		offset is the residue of the difference between the two
+		conversions, which is on the order of magnitude of the noise
+		floor. This offset is effectively canceled at every conversion,
+		so the residual offset error temperature drift is extremely low.
+		Write '1' to enable it, write '0' to disable it.
+
+What:		/sys/bus/iio/devices/iio:deviceX/auto_zeroing_ref_enable
+KernelVersion:	6.4
+Contact:	linux-iio@vger.kernel.org
+Description:
+		This attribute is used to enable the chopping algorithm for the
+		internal voltage reference buffer. This setting has no effect
+		when external voltage reference is selected.
+		Internal voltage reference buffer injects a certain quantity of
+		1/f noise into the system that can be modulated with the
+		incoming input signals and can limit the SNR performance at
+		higher Oversampling Ratio values (over 256). To overcome this
+		limitation, the buffer includes an auto-zeroing algorithm that
+		greatly reduces (cancels out) the 1/f noise and cancels the
+		offset value of the reference buffer. As a result, the SNR of
+		the system is not affected by this 1/f noise component of the
+		reference buffer, even at maximum oversampling ratio values.
+		Write '1' to enable it, write '0' to disable it.

Documentation/ABI/testing/sysfs-bus-iio-resolver-ad2s1210

@@ -0,0 +1,27 @@
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_max
+KernelVersion:  6.7
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Reading returns the current Degradation of Signal Reset Maximum
+		Threshold value in millivolts. Writing sets the value.
+
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_max_available
+KernelVersion:  6.7
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Reading returns the allowable voltage range for
+		in_altvoltage0_mag_rising_reset_max.
+
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_min
+KernelVersion:  6.7
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Reading returns the current Degradation of Signal Reset Minimum
+		Threshold value in millivolts. Writing sets the value.
+
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_min_available
+KernelVersion:  6.7
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Reading returns the allowable voltage range for
+		in_altvoltage0_mag_rising_reset_min.

Documentation/devicetree/bindings/eeprom/at24.yaml

@@ -12,6 +12,7 @@ maintainers:
 
 allOf:
   - $ref: /schemas/nvmem/nvmem.yaml
+  - $ref: /schemas/nvmem/nvmem-deprecated-cells.yaml
 
 select:
   properties:

Documentation/devicetree/bindings/iio/accel/kionix,kx022a.yaml

@@ -4,19 +4,23 @@
 $id: http://devicetree.org/schemas/iio/accel/kionix,kx022a.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: ROHM/Kionix KX022A Accelerometer
+title: ROHM/Kionix KX022A, KX132-1211 and KX132ACR-LBZ Accelerometers
 
 maintainers:
   - Matti Vaittinen <mazziesaccount@gmail.com>
 
 description: |
-  KX022A is a 3-axis accelerometer supporting +/- 2G, 4G, 8G and 16G ranges,
-  output data-rates from 0.78Hz to 1600Hz and a hardware-fifo buffering.
-  KX022A can be accessed either via I2C or SPI.
+  KX022A, KX132ACR-LBZ and KX132-1211 are 3-axis accelerometers supporting
+  +/- 2G, 4G, 8G and 16G ranges, variable output data-rates and a
+  hardware-fifo buffering. These accelerometers can be accessed either
+  via I2C or SPI.
 
 properties:
   compatible:
-    const: kionix,kx022a
+    enum:
+      - kionix,kx022a
+      - kionix,kx132-1211
+      - rohm,kx132acr-lbz
 
   reg:
     maxItems: 1

Documentation/devicetree/bindings/iio/adc/lltc,ltc2497.yaml

@@ -4,21 +4,31 @@
 $id: http://devicetree.org/schemas/iio/adc/lltc,ltc2497.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Linear Technology / Analog Devices LTC2497 ADC
+title: Linear Technology / Analog Devices LTC2497 and LTC2309 ADC
 
 maintainers:
   - Michael Hennerich <michael.hennerich@analog.com>
+  - Liam Beguin <liambeguin@gmail.com>
 
 description: |
-  16bit ADC supporting up to 16 single ended or 8 differential inputs.
-  I2C interface.
+  LTC2309:
+    low noise, low power, 8-channel, 12-bit successive approximation ADC with an
+    I2C compatible serial interface.
 
-  https://www.analog.com/media/en/technical-documentation/data-sheets/2497fb.pdf
-  https://www.analog.com/media/en/technical-documentation/data-sheets/2499fe.pdf
+    https://www.analog.com/media/en/technical-documentation/data-sheets/2309fd.pdf
+
+  LTC2497:
+  LTC2499:
+    16bit ADC supporting up to 16 single ended or 8 differential inputs.
+    I2C interface.
+
+    https://www.analog.com/media/en/technical-documentation/data-sheets/2497fb.pdf
+    https://www.analog.com/media/en/technical-documentation/data-sheets/2499fe.pdf
 
 properties:
   compatible:
     enum:
+      - lltc,ltc2309
       - lltc,ltc2497
       - lltc,ltc2499